English edit

Etymology edit

un- +‎ stamp

Verb edit

unstamp (third-person singular simple present unstamps, present participle unstamping, simple past and past participle unstamped)

  1. (rare, transitive) To undo the act of stamping something; to remove a stamp from.
    • 1843, James Garbett (Archdeacon of Chichester), Parochial Sermons (volume 1, page 267)
      At present let man sin as he may, and strive as he will, to unstamp his soul of the seal of God upon it, and the superscription of original virtue, he cannot do it.
    • 1986, William Beinart, Peter Delius, Stanley Trapido, Putting a Plough to the Ground, page 352:
      If you gave a wrong number he would penalize you by marking an extra bag for Mangoloana which meant that you would have to fight to get him to unstamp that bag.